:root {
  color-scheme: light;
  --ink: #17202a;
  --muted: #5d6873;
  --line: #dfe5ea;
  --accent: #8a3ffc;
  --paper: #ffffff;
  --wash: #f5f7fa;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--wash);
  font: 16px/1.65 system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

header, main, footer { width: min(900px, calc(100% - 40px)); margin: 0 auto; }
header { padding: 64px 0 28px; }
main { background: var(--paper); padding: 40px clamp(24px, 6vw, 72px); border: 1px solid var(--line); border-radius: 18px; }
footer { padding: 28px 0 64px; color: var(--muted); font-size: 14px; }
h1, h2 { line-height: 1.2; letter-spacing: -0.02em; }
h1 { font-size: clamp(2rem, 5vw, 3.4rem); margin: 0 0 12px; }
h2 { margin-top: 2.2em; }
p, li { max-width: 72ch; }
a { color: var(--accent); }
.eyebrow { color: var(--accent); font-weight: 700; letter-spacing: .08em; text-transform: uppercase; font-size: 13px; }
.nav { display: flex; gap: 18px; flex-wrap: wrap; margin-top: 24px; }
.card { padding: 20px 22px; border: 1px solid var(--line); border-radius: 12px; background: #fff; }
.muted { color: var(--muted); }